Home / 12,964.76-19,446.21-7,400.66

Finding the Fourth Proportional to 12,964.76, 19,446.21 and 7,400.66

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Solution

The fourth proportional to 12,964.76, 19,446.21 and 7,400.66 is: 11,100.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.76 : 19,446.21 = 7,400.66 : x
  2. Step 2: Convert to fraction form
    12,964.76/19,446.21 = 7,400.66/x
  3. Step 3: Cross multiply
    12,964.76x = 19,446.21 × 7,400.66
  4. Step 4: Simplify right side
    12,964.76x = 143,914,691.27
  5. Step 5: Solve for x
    x = 143,914,691.27/12,964.76
  6. Step 6: Final answer
    x = 11,100.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.